Copper is a mineral that we are all familiar with, but we
don't usually see it like it looks in this picture. We see it everyday in
the form of pennies. Copper is a very useful mineral that is also used in
wires to conduct electricity. In fact, silver is the only other metal that
conducts electricity better, but it's too expensive to use. Copper is very
important in our industries and is also combined with other metals to make
brass and bronze.